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cograph. In DICTIOUS you will not only get to know all the dictionary meanings for the word
cograph, but we will also tell you about its etymology, its characteristics and you will know how to say
cograph in singular and plural. Everything you need to know about the word
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English
Etymology
From co- + graph.
Noun
cograph (plural cographs)
- (mathematics) A graph formed from another by complementation and disjoin union.
- (mathematics) The dual of the graph of a function. It is an ordinate-indexed partition of the disjoint union of the set of abscissas and ordinates of the function.
Given a function whose graph is , append an apostrophe to the abscissas so that they will not be confused with ordinates when obtaining their disjoint union, which is: . The cograph then is .
Derived terms